Improvement in gates



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IMPROVEMENT IN GATES.

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TO ALL WEOM IT MAY CONCERN:

Be it known that I, G. P. STEBBINS, of Sparta Centre, in the county ofKent, and State of i nvented a newand improved Gate; and I do herebydeclare that the following is a. full, cl description thereof, whichwill enable others skilled in the art to make and use the same, to theaccompanying drawings, and to the letters oi -reference marked thereon.

This invention relates to a new and improved'gate, of that class inwhich certain appliances are used to admit of them being opened orclosed under the weight of the vehicle which passes through them, andwhich are commonly te'rmed self-acting.

The inventionconsists in the' peculiar means employed for operating oropening and closing the gate, as hereinafter fully shown anddescribed.Iii the accompanying sheet of drawings---- i Figure 1 is a side view ofmy invention, the 'case, which contains a portion of the operatingparts, being in section, as indicated by the line :v x, fig. 2. i

Figure 2, a transverseyertical section of the same taken in the line 3y, fig. 1. Similar letters of reference indicate like parts.A'represents what may be termed a framing, Within which the gate B ishung or suspended on tworollers, a a, so that it may work freely acrossthe opening 6, which is between a hollow post or case, 0, upright frame,01, shown clearly in fig. 1. To the rear-end of the upper partof thegate B. there is attached-a Michigan, have car, and exact referencebeing had and a oster cord, 0, which is connected to the periphery of apulley, D, atone end of the framing A, and to the axis of the pulley D acord, e, is attached, having-a weigh't,f, connected to it, said cordbeing connected to the outer end of a bar, E, which is directlyunderneath the gate, and-is secured at one end-t9 the foundation 9, asshown at k,- fig. 1. To the gate B there is alsoattached a cord, 2',which passes within the hollow post or case a, and under and overpulleys j 3', said cord having a; weight, is, attached. to its end, asshown clearly in fig. 1. This weight is, it will be seen, has a tendencyto keep the gate closed. F F are two platforms, placed on the founda-.

tion 9, andiconnected thereto at their outer end by joints Z. Theinner-ends of these platforms rest on the bar E, and said platforms areat the bottom of the space .or opening Z2. The weight is issufiicielitly heavy to keep the gate B closed, and, consequently, thefree or disengaged end of the bar -E.

Fromthe above description it will be seen that when the gate is' closed,and a vehicle approachesit in either direction, and depresses theplatforms F F, and the bar E and the pulley will-be' turned, and thegate drawh back and opened by the cord 0; and afterthe vehicle haspassed through the space or opening I), and leaves the platform F at theopposite side, thegate will .be drawn back and closed by the weight 7r.

This gate-operating mechanism may be applied at a very moderate cost,and the gate, in consequence of being hung or suspended on the rollers aa, will move easily or freely, and the gate may be nearlycounterbalanced by the weights lcf, so that a very light vehicle maydepress the platforms and open the gate.

' Having thus described-my invention, I claim as new, and desire tosecure by Letters Patent- The sliding gate B, hungmr' suspended onrollers do, in combination withthe weight k, the pivoted bar E,platforms F F, and the pulleys Djj, all arranged to operate in themanner substantially as set forth.

GrkIUS P. STEBBINS.

Wi tn csscs Jens -M. BALGOM, VALEDA BALcoM.

